500
WWUS76 KLOX 030945
NPWLOX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
245 AM PDT MON AUG 3 2026
CAZ381>383-040200-
/O.CON.KLOX.XH.W.0004.000000T0000Z-260806T0300Z/
WESTERN ANTELOPE VALLEY FOOTHILLS-EASTERN ANTELOPE VALLEY
FOOTHILLS-ANTELOPE VALLEY-
INCLUDING THE CITIES OF LANCASTER, ELIZABETH LAKE, PEARBLOSSOM,
PALMDALE, LAKE PALMDALE, LAKE LOS ANGELES, VALYERMO, AND LLANO
245 AM PDT MON AUG 3 2026
..EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT WEDNESDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES 100 TO 110.
* WHERE...ANTELOPE VALLEY AND NEARBY FOOTHILLS.
* WHEN...UNTIL 8 PM PDT WEDNESDAY.
* IMPACTS...THERE IS A HIGH RISK FOR DANGEROUS HEAT ILLNESS,
ESPECIALLY FOR SENSITIVE GROUPS LIKE THE VERY YOUNG, THE VERY OLD,
THOSE WITHOUT AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...HEAT HAZARDS MAY EXTEND INTO NEXT WEEK FOR
PORTIONS OF THE REGION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
STAY COOL, STAY HYDRATED, STAY INFORMED.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
IF YOU DO NOT HAVE AIR CONDITIONING IN YOUR HOME OR LACK SHELTER, YOU
CAN CALL 211 FOR ASSISTANCE LOCATING APPROPRIATE SHELTER FROM THE
HEAT.
CAZ038-040200-
/O.CON.KLOX.XH.W.0005.260803T1700Z-260805T0300Z/
CUYAMA VALLEY-
INCLUDING THE CITIES OF NEW CUYAMA
245 AM PDT MON AUG 3 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM PDT TUESDAY...
* WHAT...HOT DAYTIME CONDITIONS WITH HIGH TEMPERATURES BETWEEN 95 AND
105 COMMON.
* WHERE...THE CUYAMA VALLEY.
* WHEN...FROM 10 AM THIS MORNING TO 8 PM PDT TUESDAY.
* IMPACTS...THERE IS A HIGH RISK FOR DANGEROUS HEAT ILLNESS,
ESPECIALLY FOR SENSITIVE GROUPS LIKE THE VERY YOUNG, THE VERY OLD,
THOSE WITHOUT AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...HEAT HAZARDS MAY EXTEND INTO NEXT WEEK FOR
PORTIONS OF THE REGION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
STAY COOL, STAY HYDRATED, STAY INFORMED.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
IF YOU DO NOT HAVE AIR CONDITIONING IN YOUR HOME OR LACK SHELTER, YOU
CAN CALL 211 FOR ASSISTANCE LOCATING APPROPRIATE SHELTER FROM THE
HEAT.
CAZ377-040200-
/O.CON.KLOX.XH.W.0004.260803T1700Z-260805T0300Z/
NORTHERN VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF LOCKWOOD VALLEY, MOUNT PINOS, AND OZENA
245 AM PDT MON AUG 3 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM PDT TUESDAY...
* WHAT...VERY WARM DAYTIME CONDITIONS WITH HIGH TEMPERATURES BETWEEN
95 AND 105 COMMON, EXCEPT LOCALLY UP TO 108 IN THE HOTTEST
LOCATIONS.
* WHERE...NORTHERN VENTURA COUNTY MOUNTAINS.
* WHEN...FROM 10 AM THIS MORNING TO 8 PM PDT TUESDAY.
* IMPACTS...THERE IS A HIGH RISK FOR DANGEROUS HEAT ILLNESS,
ESPECIALLY FOR SENSITIVE GROUPS LIKE THE VERY YOUNG, THE VERY OLD,
THOSE WITHOUT AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...HEAT HAZARDS MAY EXTEND INTO NEXT WEEK FOR
PORTIONS OF THE REGION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
STAY COOL, STAY HYDRATED, STAY INFORMED.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
IF YOU DO NOT HAVE AIR CONDITIONING IN YOUR HOME OR LACK SHELTER, YOU
CAN CALL 211 FOR ASSISTANCE LOCATING APPROPRIATE SHELTER FROM THE
HEAT.
CAZ344-345-353-375-376-378>380-040200-
/O.CON.KLOX.HT.Y.0012.260803T1700Z-260806T0300Z/
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-SAN LUIS OBISPO COUNTY
MOUNTAINS-SANTA BARBARA COUNTY INTERIOR MOUNTAINS-SANTA SUSANA
MOUNTAINS-SOUTHERN VENTURA COUNTY MOUNTAINS-INTERSTATE 5 CORRIDOR-
WESTERN SAN GABRIEL MOUNTAINS AND HIGHWAY 14 CORRIDOR-EASTERN SAN
GABRIEL MOUNTAINS-
INCLUDING THE CITIES OF WARM SPRINGS, CALIENTE RANGE, MOUNT BALDY,
OAT MOUNTAIN, SANTA MARGARITA LAKE, GORMAN, MOUNT WILSON, FIGUEROA
MOUNTAIN, PYRAMID LAKE, WRIGHTWOOD, THE ANGELES CREST HIGHWAY, TEJON
PASS, ACTON, TOPATOPA MOUNTAINS, SHANDON, ROSE VALLEY, CRESTON,
MATILIJA, CARRIZO PLAIN, BIG PINE MOUNTAIN, SAN RAFAEL MOUNTAIN, LA
PANZA RANGE, AND MILL CREEK
245 AM PDT MON AUG 3 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
PDT WEDNESDAY...
* WHAT...TEMPERATURES OF 95 TO 105 DEGREES EXPECTED.
* WHERE...EASTERN SAN GABRIEL MOUNTAINS, INTERSTATE 5 CORRIDOR, SAN
LUIS OBISPO COUNTY INTERIOR VALLEYS, SAN LUIS OBISPO COUNTY
MOUNTAINS, SANTA BARBARA COUNTY INTERIOR MOUNTAINS, SANTA SUSANA
MOUNTAINS, SOUTHERN VENTURA COUNTY MOUNTAINS, AND WESTERN SAN
GABRIEL MOUNTAINS AND HIGHWAY 14 CORRIDOR.
* WHEN...FROM 10 AM THIS MORNING TO 8 PM PDT WEDNESDAY.
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
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